Home / 13,027,129.82-17,979,595.30-7,227,779.91

Finding the Fourth Proportional to 13,027,129.82, 17,979,595.30 and 7,227,779.91

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Solution

The fourth proportional to 13,027,129.82, 17,979,595.30 and 7,227,779.91 is: 9,975,532.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,027,129.82 : 17,979,595.30 = 7,227,779.91 : x
  2. Step 2: Convert to fraction form
    13,027,129.82/17,979,595.30 = 7,227,779.91/x
  3. Step 3: Cross multiply
    13,027,129.82x = 17,979,595.30 × 7,227,779.91
  4. Step 4: Simplify right side
    13,027,129.82x = 129,952,557,609,372.45
  5. Step 5: Solve for x
    x = 129,952,557,609,372.45/13,027,129.82
  6. Step 6: Final answer
    x = 9,975,532.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.